I'm not sure that the exact weight of a piston is as important as the size and clearance ... I'd suggest that values like con-rod length and balance factor are also 'nice to know's not 'need to know's - which may be why they're not often found, along with a lot of other information!) The con rod le...

Having now gone through the ~90 posts in the 'Which pistons' thread without finding a single actual measurement of the weight of any piston (as opposed to words like "heavy") I'm beginning to wonder if this is the right place to seek technical information. However, hope springs eternal tha...

Youll need to be pretty fit too.Last run a rider pushed to the top of the high point in the race, As you must know, that bike was a 1914 belt-drive single. An important factor in my choice of the higher-h.p., chain-drive Ariel was not wanting a line in my obituary to read "Cause of death: hear...

One guy with a 1929 sloper BSA blew up nine spare motors,then took a wrong turn into a river.....It also helps a bit if youre a billionare.Regards John. Since "everyone" in the 2018 Cannonball will be on large American bikes, I wanted something else. Although I'm American, other than a Ho...

I would not use an API GL4 in a Burman box... It can be difficult to find GL1. Thanks for your post. I should have mentioned that issue in my post. It certainly is difficult to find GL1 gear lube, but two bottles of Morris "Golden Film Classic Gear Oil" will be on their way to me from the...

I found a two answers to the following questions, but I'm still hoping someone here can provide more: -- the balance factor? -- the connecting rod length? -- the free length and diameter of the valve springs? -- the head diameter, stem diameter, and length of the inlet and exhaust valves? -- the car...

As a very brief introduction I've had a variety of British bikes for 50 years and have a very well equipped shop (including lathe, mill, TIG welder, etc.) where I do essentially all the maintenance and restoration work myself. Making a long story short, I joined the AOMCC two days ago because a 1928...